Respuesta :

my answer is: P/2a = 2b
if that's wrong then im sorry I got it by dividing 2a on each side so 2b would be alone
KatsuekiX
since we have P = 2a + 2b we can do the following to make b the subject of the formula

P = 2a + 2b (Minus 2a from both sides)
P - 2a = 2b (Divide both sides by 2)
( P - 2a )/2 = b
or
( p / 2 ) - a = b